[s-cars] Intake Input

[Joe Pizzimenti]

Bill,
There's a reason the breather system is run that way: It needs vacuum
(from turbo inlet) in order to properly vent crankcase pressure
without foaming up the oil.  Otherwise, there's no where for the fumes
to go and gravity will keep them in the crankcase.

I suggest to find a vac source (check ferrari parts bin for electric
air pump).  I've also heard a check valve plumbed into the downpipe
works quite well.

Joe

On 7/19/06, Bill Mahoney <wmahoney at disk.com> wrote:
> Folk's
>
> FINALLY got to install a new crankcase pressure valve and oil catch can over
> the weekend.
>
> Turns out my old pressure valve had a leak on the top seal which was spewing
> oil and rustproofing the intake side of the motor.
>
> In reviewing some I-5 motronic info last night (am I a fun date or what?) it
> appears that the crankcase vent come out of the block, goes to some T
> connection where one direction sends it to the pressure valve and towards
> the back of the motor and (normally) through the valve cover and back to the
> intake by the turbo.  The other direction of the T goes through something (I
> think) called a non return valve where it joins fuel tank vapors and is fed
> directly into the bottom (and generally not able to be seen) of the intake
> manifold.
>
> I think I would like to replace this so called return valve but wonder: part
> number, how hard it is to remove, and if anyone knows anything about this
> secret input to the combustion system?  Any problems ever with this thing?
> Sorry don't recall ever hearing about this.
>
> Any info is much appreciated.
>
> Bill~seeking clean intake~M
>
>
>
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